hi eveyone,
I was trying to send parameters through xmlHttp.send(params) and process them in my
servlet class.
However, I could not retrieve those parameters in the servlet class by using request.getParameter("paramName");
here is my code in javascripts(ajax part)
and here is the code in my servlet class
now I am able to get and display "hahaha" in my webpage ,but all the parameters returned are all nulls.
any comments will be grateful.
thanks very much in advance